This product is a 7 page practice problem worksheet on sex-linked genetic traits. There is a wide variety of problems that cover colorblindness, hemophilia, eye color in fruit flies, etc. There are 19 problems and many of these 19 problems have numerous questions that must be answered. All of the problems involve sex linkage and sex-linked genes. Some of the problems are monohybrid and some of the problems are dihybrid. Your download will include two versions of the worksheet: a pdf version and a Word document. In the event this worksheet is too long, it will be very simple to eliminate some of the problems to make a shorter worksheet.